A slotless-armature DC motor with multiplex winding can be designed for higher power rating than one with a conventional slotted armature. Conventional field systems would be very heavy and a superconducting field winding is considered in order to create an iron-free stator and lightweight machine. The superconducting field winding is relieved of reaction torque by means of a special winding attached to a separate torque tube. The reaction winding is also designed to establish the necessary commutation flux in the interpole region. Test results from a small laboratory machine demonstrate the principle of the proposed torque reaction winding. A design for a 20 MW ship propulsion motor is presented.


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    Title :

    Large superconducting DC drives with separate torque reaction windings


    Additional title:

    Große Gleichstrommotoren mit supraleitenden Wicklungen und getrennten Wicklungen für die Drehmomentrückkopplung


    Contributors:

    Published in:

    Publication date :

    1995


    Size :

    9 Seiten, 7 Bilder, 9 Tabellen, 5 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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